CK did J a few years back, your best bet is to just grab it off krdl.info.

ZX is a 45-minute special that aired in 1984. MCS did both that and a slightly longer version that starts with a ten-minute retrospective on the original series. ZX was meant, at one point, to actually be a full show, but the plans fell through and all we got was the special. As a result, the story is really rushed, but it is worth watching, if only for being the last appearance of Takehisa Yamaguchi as Yuki Joji before his death and for an out-of-suit villain role by Tetsuya Nakayashiki, the main Rider suit actor for most of the early Showa era.

I went to krdl.info, but they don't have anything on J at all. I did get the Skyrider and Super-1 KIT files I could not download off their site though, but they didn't have the original Kamen Rider series either on there.

I went to krdl.info, but they don't have anything on J at all. I did get the Skyrider and Super-1 KIT files I could not download off their site though, but they didn't have the original Kamen Rider series either on there.